γ-射线辐照从水溶液环境中制得金属镍超细粉的晶粒度和磁学性质

Magetic Properties and Grain Size of Metal Nickel Ultrafines Prepared in A Liquid Environment by Using γ-Ray Radiation

报道γ－射线辐照相应金属盐溶液制得金属镍超细粉及其晶粒度和磁学性质。所得产物的矫顽力和磁饱和强度比一般镍和其它方法制得的超细镍粉或文献报道值大得多。

The magnetic properties and grain size of metal nickel ultrafines prepared from asoluble metalsates aqueous solution by using γ-ray radiation is presented in this paper.The coercivity (Hc) and specific magnetic moment (σ s) of the metal mickel ultrafines is higher than those of responsible products obtained from other methods or the values reported in references .The relationship between magnetic properties (Hc and σ s) with gain size, and grain size with radiation dose ,are also discussed.